From owner-freebsd-net@FreeBSD.ORG  Fri Nov 30 11:09:02 2007
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Date: Fri, 30 Nov 2007 15:50:32 +0500
From: Andrew Alcheyev <buddy@telenet.ru>
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Subject: per-socket keep-alive options for TCP
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Hello everybody.

I have recently examined the keep-alive mechanism in FreeBSD's TCP
stack and found out that it has no tunable variables for keep-alive on
a per-socket basis.

Is anyone interested in a patch like this one?
http://mail-index.netbsd.org/tech-net/2007/06/19/0001.html

Alternatively, a patch for FreeBSD may introduce a new kernel option.

I would appreciate any suggestions.